From 2d1aca25e6971f4aaa0b05159984badb7033bc5e Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Tue, 15 May 2018 10:20:03 -0400
Subject: [PATCH] A64: Implement SMULL{2}
---
src/frontend/A64/decoder/a64.inc | 2 +-
.../translate/impl/simd_three_different.cpp | 20 +++++++++++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/src/frontend/A64/decoder/a64.inc b/src/frontend/A64/decoder/a64.inc
index 72a725b2..34bab5e2 100644
--- a/src/frontend/A64/decoder/a64.inc
+++ b/src/frontend/A64/decoder/a64.inc
@@ -686,7 +686,7 @@ INST(SUBHN, "SUBHN, SUBHN2", "0Q001
INST(SABDL, "SABDL, SABDL2", "0Q001110zz1mmmmm011100nnnnnddddd")
//INST(SMLAL_vec, "SMLAL, SMLAL2 (vector)", "0Q001110zz1mmmmm100000nnnnnddddd")
//INST(SMLSL_vec, "SMLSL, SMLSL2 (vector)", "0Q001110zz1mmmmm101000nnnnnddddd")
-//INST(SMULL_vec, "SMULL, SMULL2 (vector)", "0Q001110zz1mmmmm110000nnnnnddddd")
+INST(SMULL_vec, "SMULL, SMULL2 (vector)", "0Q001110zz1mmmmm110000nnnnnddddd")
//INST(PMULL, "PMULL, PMULL2", "0Q001110zz1mmmmm111000nnnnnddddd")
INST(UADDL, "UADDL, UADDL2", "0Q101110zz1mmmmm000000nnnnnddddd")
INST(UADDW, "UADDW, UADDW2", "0Q101110zz1mmmmm000100nnnnnddddd")
diff --git a/src/frontend/A64/translate/impl/simd_three_different.cpp b/src/frontend/A64/translate/impl/simd_three_different.cpp
index b08be1cc..7ed9d85b 100644
--- a/src/frontend/A64/translate/impl/simd_three_different.cpp
+++ b/src/frontend/A64/translate/impl/simd_three_different.cpp
@@ -35,6 +35,17 @@ void AbsoluteDifferenceLong(TranslatorVisitor& v, bool Q, Imm<2> size, Vec Vm, V
v.V(2 * datasize, Vd, result);
}
+
+void MultiplyLong(TranslatorVisitor& v, bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
+ const size_t esize = 8 << size.ZeroExtend();
+ const size_t datasize = 64;
+
+ const IR::U128 operand1 = v.ir.VectorSignExtend(esize, v.Vpart(datasize, Vn, Q));
+ const IR::U128 operand2 = v.ir.VectorSignExtend(esize, v.Vpart(datasize, Vm, Q));
+ const IR::U128 product = v.ir.VectorMultiply(2 * esize, operand1, operand2);
+
+ v.V(2 * datasize, Vd, product);
+}
} // Anonymous namespace
bool TranslatorVisitor::SABAL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
@@ -87,6 +98,15 @@ bool TranslatorVisitor::SADDW(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
return true;
}
+bool TranslatorVisitor::SMULL_vec(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
+ if (size == 0b11) {
+ return ReservedValue();
+ }
+
+ MultiplyLong(*this, Q, size, Vm, Vn, Vd);
+ return true;
+}
+
bool TranslatorVisitor::SSUBW(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11) {
return ReservedValue();